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1.. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-no-invariants-or-later2.. c:namespace:: RC3 4.. _lirc_set_wideband_receiver:5 6********************************7ioctl LIRC_SET_WIDEBAND_RECEIVER8********************************9 10Name11====12 13LIRC_SET_WIDEBAND_RECEIVER - enable wide band receiver.14 15Synopsis16========17 18.. c:macro:: LIRC_SET_WIDEBAND_RECEIVER19 20``int ioctl(int fd, LIRC_SET_WIDEBAND_RECEIVER, __u32 *enable)``21 22Arguments23=========24 25``fd``26 File descriptor returned by open().27 28``enable``29 enable = 1 means enable wideband receiver, enable = 0 means disable30 wideband receiver.31 32Description33===========34 35Some receivers are equipped with special wide band receiver which is36intended to be used to learn output of existing remote. This ioctl37allows enabling or disabling it.38 39This might be useful of receivers that have otherwise narrow band receiver40that prevents them to be used with some remotes. Wide band receiver might41also be more precise. On the other hand its disadvantage it usually42reduced range of reception.43 44.. note::45 46 Wide band receiver might be implicitly enabled if you enable47 carrier reports. In that case it will be disabled as soon as you disable48 carrier reports. Trying to disable wide band receiver while carrier49 reports are active will do nothing.50 51Return Value52============53 54On success 0 is returned, on error -1 and the ``errno`` variable is set55appropriately. The generic error codes are described at the56:ref:`Generic Error Codes <gen-errors>` chapter.57